Julius hackenbeeg-



J. HACKENBERG.

(No Model.)

BRACELET.

No. 282,310. Patented July 31'. 1883.

- Erma/0i N. PETERS. Phutomhagn mr, Washington. D. c.

UNITED STATES PATENT firmer.

JULIUS HACKENBERG, OF I-IOBOKEN, NEWV JERSEY, ASSIGNOR TO CHARLES H. GRAEF, OF EDGEWVATER, NEW YORK.

BRACELET.

SPECIFICATION forming part Of Letters Patent No 282,310, dated July 31, 1883.

' Application filed June 22, 1882. (No model.)

all whom, it may. concern Be it known thatI, JULIUs HAOKENBERG, of Hoboken, in the county of Hudson and State of New Jersey, have invented a certain new and 5 useful Improvement in Bracelets, of which the following is a specification.

The improvement consists in the combination, in a bracelet, of one partpivoted to another and adapted to interlock therewith, so that normally it will be maintained in a position coincident therewith, and the two ends of the bracelet in contact, one or both of the parts which are connected by the pivot having resilient portions capable of yielding at or near 15 their ends laterally, or in the direction of the width of the bracelet, to permit of the swinging of one part upon the pivot relatively to the other in order to open the bracelet. The resilient portions aforesaid may be made integral with one of the parts, but preferably I shall employ two parts united by a connecting-piece made separate from both of them, said resilient yielding portions being employed to permit of the opening of the bracelet.

1n the accompanying drawings, Figure 1 is aside view of a bracelet embodying my improvement. Fig. 2 is aback view of the same. Fig. 3 is atransverse section of the same. Fig. 4 is a back view of abracelet of modified form. Fig. 5 is a back view of a bracelet of still another modified form, and Fig. 6 is a back View of a bracelet of still another modified form;

Similar letters of reference designate corresponding parts in all the figures.

Referring first to Figs. 1, 2, and 3, A A designate two parts which may be made of indiarubber, celluloid, metal, or other suitable material. As shown, they are made in the form of bars of round transverse section. They are curved longitudinally to conform to the wrist, like the parts of an ordinary bracelet. B designates a connecting-piece made separate from the parts A A, and of the sameor any other suitable material. As here shown, this connecting-piece B has at each end two arms, a a, which are transversely hollowed out to embrace and interlock with the contiguous ends of the parts A A. Pivots consisting of "pins 0, of metal or other suitable material, pass transversely through the arms a a and the contiguous ends of the parts A A. Both of the parts A A may be adapted to have a pivotal or swinging motion with relation to' the con necting-piece, or one may be rigidly secured thereto and the other alone may be secured to the connecting-piece, so as to be susceptible of a pivotal or swinging movement. The pivotpin of that part which is to be rigidly secured to the connecting-piece is headed or clinched at both ends, so as to prevent the contiguous 6o arms of the connecting-piece from yielding or spreading to permit-of any pivotal or swinging movement of the said part. The pivot-pin of the other part. is, however, headed or clinched at but one end, and hence does not 6 hold the contiguous arms in fixed relations with each other. This part may be swung back, because the arms, being resilient, will yield laterally or in the direction of the width of the bracelet and spread apart to allow it to become unlo cked from the arms. The tension produced on the arms by thus spreading them apart causes them to tend to hold the part in the position to which it is adjusted. When the part is returned to its normal position, the arms,

by their resilience, will tend to hold it there,

in coincidence with the resilient arms. the two I ends of the bracelet being in contact. The connecting-piece and one of the parts A A may be made integral, if desirable.

Turning now to Fig. 4, A A designate two parts whose adjacent ends are bifurcated to form two pairs of resilient arms, a a. A connecting-piece, B, consisting of a round bar, fits between these pairs of arms, the latter being 85 hollowed outto embrace it. Pivot-pins 0 pass through these pairs of arms and through the connecting-piece. If either part A or A is to be rigidly secured to the connecting-piece, its pivot-pin is headed or clinched at both ends; 0 otherwise thepivot-pin is headed or clinched at but one end. This bracelet operates likethe one first described, the resilient arms spreading to permit the swinging of the part comprising them relatively to the connecting-piece. 9 5 The connecting-piece B may be made integral with one of the parts A A.

The bracelet shown in Fig. 5 differs from those previously described in that it has no connecting-piece, the parts A A being piv- 10o oted together and severally provided with pairs of arms a a. The pairs of arms of both parts may be resilient, the inner pair, a, having a tendency to spread apart and the outer pair, a, to approach each other. The armsa are externally rounded and the arms a internally concaved or hollowed out, so that they will interlock with the others and tend to hold the parts A A with their free ends in contact or proximity to each other. If the ends of the pivot-pin O which unites these pairs of arms are clinched in the arms a, so as to hold them in fixed relations with each other, then the inner arms, a, only will act by their resilience.

Fig. 6 illustrates how the parts A A maybe duplicated in a bracelet in conjunction with a single connecting-piece, 0. Two pairs of parts, A A, are here used in conjunction with a connecting-piece having four pairs of arms, a a. This bracelet resembles the one illustrated in Figs. 1, 2, and 3. a

It will be seen that by my invention the hinges of bracelets are made to constitute springs for maintaining their parts both opened and closed when adjusted into either position.

The bracelets'here shown may be regarded as severally consisting of two or, at most, three longitudinal sections. Obviously they may be composed of any greater number of sections.

It is not absolutely essential that the parts united by the pivot-pins shall be rounded. They may be of any other shapes by which the desired results can be attained.

pivot having resilient portions or arms capa ble of yielding at or near their ends laterally, or in the direction of the width of the bracelet,

to permit of the swinging of one part upon the pivot relatively to theother part to open the bracelet, substantially as specified.

2. The combination, in a bracelet, of two )arts and an intermediate connectin )iece 7 b pivoted to one of the parts, portions, or arms which are resilient, so that they are adapted to yield laterally, or in the direction of the -width of the bracelet, being employed where this part and the connecting-piece are pivoted together, substantially as and for the purpose specified. JULIUS I-IAOKENBERG.

VVitn'esses:

T. J. KEANE,

J AMES R. BOWEN. 

